one fan is your normal cooling fan the other is for when your a/c is on to check if it is working simply turn your a/c on and both fans should run at same time
easiest way to tell if water pump is working is to run engine until at running temp. then carefully remove radiator cap. with someone slightly reving engine, look into radiator. if the pump and thermostat are working correctly, you will see the coolant moving(circulating) in the radiator
The radiator fan motor is electric. The fan motor fuse may be blown. The fan motor may need to be changed. The engine should not be operated when it is running hot.
There is coolant in the engine block when the engine is not running. The engine block, heater, hoses and radiator remain full when engine is not running.
After driving and warming up your engine turn off your engine. After engine is off turn the key back to the on position and open the hood. The fan should still be running. Chances are if it isn't, a fuse is probably blown.
It can. You should leave the engine running while you add water to the radiator. If you add water with the engine turned off, but while the engine is overheated, you might damage the engine or the radiator.
With engine cool - remove radiator cap Run engine to normal operating temperature and try to observe coolant flow inside radiator - should be little to no flow until thermostat opens and then full circulation should be observed.
You most likely have a blown headgasket.
The relief vent in the radiator cap is not working, replace the radiator cap.
The engine would be running poorly and the check engine light should be illuminated with related codes.
Cooling fan may not be working as it should. If it is not coming on either the fan is defective, fuse is blown, or the thermal sensor is bad. If it is running and the engine is still overheating the radiator may be partially clogged.
Because you dont have the engine running
Bad temperature sensor, but engine light should be on & it's code should come up.